Screen size, resolution and quality are some of the most important features to consider when choosing a smartphone.
Huawei P8Max's 6.8" IPS screen is significantly larger (1.8" ) than the BlackBerry Z30's 5" Super AMOLED screen.
Besides comparing the LCD sizes, another specs that we find useful to compare is the ratio of screen area to total surface area of the phone (screen area/total surface area).
Huawei P8Max and BlackBerry Z30 have exactly the same display coverage of 70%- so we don't have a winner here.
Screen size is only one side of the story, resolution is as important in most cases.
Huawei P8Max's 324ppi pixel density is only slightly higher (30ppi ) than the BlackBerry Z30's 294ppi pixel density.